Hot-water heater for incubators.



F. H. DALE.-

HOT WATER HEATER FOR INCUBATORS. APPLICATION FHTED JUNE I. 1915.

Patented Nov. 16, 1915.

2 SHEETS-SHEET I.

F. H. DALE.

HOT WATER HEATER FOR INCUBATORS. APPLICATION FILED JUNE 1. 1915.

\ Patented Nov. 16, 1915.

2 SHEETS-SHEET 2.

FRED H. DALE, OF MANHATTAN, KANSAS, ASSIGNOB 0]? OF MANHATTAN, KANSAS.

HOT-WATER HEATER FOB. INCUBATOBS.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed .Tune 1, 1915. Serial No. 31,427.

To all whom it may concern:

Be it known that I, FRED H. DALE, a citizen of the United States,- residing at Manhattan, Kansas, have invented a new 7 and useful Hot-Water Heater for Incubators, of which the following is a specification.

The object of my invention is to provide improved means for the maintenance of an even temperature in the incubator; to provide a novel disk method of heat distribution; to provide a novel heat-escape pipe; and to provide an improved double damper system disposed above the incubator, operatively connected with the heat-escape pipe and heat chamber and operated by the action of the thermostat within the incubator. It is an especial object of my invention to prevent any waste of heat, and to provide improved means for more quickly adjusting the supply of heat to the incubator than is shown in prior, incubator heating systems.

It is also an object of my invention to provide the novel combination, disposition and arrangement of parts illustrated and claimed.

I attain the objects of my invention by the mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a side elevation of my invention, partly in section; Fig.2 is a top plan;

Fig. 3 is an end View; F g. 4 is a section through the center of the hot water heater and heat escape pipe; and Fig. 5 is a section on line 5-5 of Fig. 4.

Similar characters of reference indicate similar parts throughout the several views.

Referring to the accompanying drawings, I provide a suitable incubator body 1, having a suitable bracket 2 for a lamp 3, having a suitable chimney 4 provided with a mica window 31. Chimney 4 is provided with a reduced upper end 5, from the top of which is fastened rod or wire 6 which supports a plurality of disks 7 and a plurality of disks 8 in alternate relation, fastened together inspaced relation by rods 9. The larger disks 8 extend entirely across the chimney but are provided with a central opening 10 through which the heated air may pass, while disks 7 are of less area, leaving an annular space between their outer 'edges and the wall of the chimney, through which the heated air may circulate, as indicated by the arrows in Fig. 4. A water in the county of Riley and State of heater drum 11, surrounds the upper portion of chimney illustrated. It is provided with a .cap 18 which may be removed to fill the heater drum with Water, and is further provided with a suitable outlet or draw-off valve 19.

pening out of heater drum 11 is a central outward flow pipe 12, opening into end pipes 13, which in turn open into return flow pipes-14 and 15, as shown in. Figs. 1 and 2, pipes 15 opening into cold water return member 16. terminating in a channel 17 through the lower part of water heater drum 1, as shown in Fig. 1, in section.

Within. the incubator chamber I provide nected with thermostat-lever 29, which in turn is connected by rod 28 to damper raising lever 26, which is fulcrumed at 2'7 and connected at 25 to double damper lever 22. Damper lever 22 is supported and pivotally mounted on bracket 21. Attached to one end of. damper lever- 22 is a damper 23 adapted permit of the .escape of heat before its cir-,

culation about the disks in the chimney member 4, as shown in Fig. 4.

In operation, heating of the incubator chamber beyond the predetermined temperature at which the thermostat is set will cause damper raising lever 26 to raise damper lever 22 at 25, thus opening damper 24 over heat escape pipe 20 and simultaneously closing end 5 of chimney 4. Heat escape pipe 20, when damper 24 is'open, causes such a suction or draft that it draws the heat at once away from the water heater drum and upper portion of lamp chimney 4, thus quickly lowering the heat of the water in drum 11 and lowering the temperature the required degree in the incubator chamber. The heated air from the lamp in passing through chimney 4 is kept in constant cir- 1 culation against the sides of the chimney by 4 and chimney end 5, as 1 a suitable thermostat 30, operatively conwith the top ed air is thus kept in constant circulation against the walls of the chimney, thus heating the water quickly and preventing any Waste of heat.

My heat escape pipe, it is important to, note, is located outside the main heating chamber, thus more quickly permitting the reduction of temperature in the incubator than in heating systems heretofore devised for incubators, and thereby insuring the maintenance of an even temperature in the incubator through the, use of the double dampers in connection with the heat escape pipe. My heater structure and incubator interior is of all metal, thus avoiding absorption of moisture from the eggs.

What I claim is:

1. The combination of an incubator having a water heater drum exterior to the incubator chamber, a heating flue extending therethrough having its upper end of reduced size and the lower portion of relatively large size and having baflle plates in said lower portion to increase the heating power, a heat escape pipe opening out of the base of said flue below the heater drum and having its upper end substantially alined of the flue, dampers disposed over the top of the heating flue and the top of the heat escape pipe, and pivoted means operatively connecting said dampers witha thermostat to simultaneously raise one damper and lower the other, whereby to quickly regulate the temperature of the incubator.

2. The combination of an incubator hav- 111% a water heater drum exterior to the incu ator chamber, a heating flue extending therethrough having its upper end of reduced size, a heat escape pipe opening out of the base of said flue below the heater drum and having its upper end substantially allned with the top of the flue, dampers disposed over the top'of the heating'flue and the top of the heat escape pipe, means operatively connecting said dampers with a thermostat to simultaneously raise one damper and lower the other, a central pipe opening: out of the upper portion of the heater drum for the outflow of water, and return pipes extending around the incubator chamber, and a pipe opening into thebase of the heater drum into which said outer return pipes open, whereby to effectively and evenly heat the incubator chamber.

3. In a hot water incubator system, allot water drum having means for the outflow of water to the incubator and its return to the base of the heater drum, a heating chimney extending through the drum, a heat escape pipe opening out of thebase of said heating chimney and positioned exterior to the incubator chamber, operatively connected dampers positioned to seat over the heat es cape pipe and the heating chimney end, means thermostatically controlled from within the incubator for alternately operating said dampers to conform with temperature changes, and alternately arranged spaced large and small disks suspended in horizontal position within the portion of the heating chimney extending through the heater drum, the large disks having central openings, whereby heated air is kept in constant circulation against the sides of the chimney in passing the smaller disks, to rapidly heat the water in the drum.

FRED H. DALE.

Witnesses-2 KINNEY, L. R. EAKIN. 

